# include <stdio.h>
int main()
{
	/*float a = 9.0/2;
	printf("%f\n",a);*/
	/*int a = 2;
	int b = a << 1;
	printf("%d\n", b);*/
	/*int a = 0;
	printf("%d\n", ~a);*/
	int a = 10;
	int b = a++;
	printf("%d\n", b);
	printf("%d\n", a);
	return 0;
}